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Bacillariophyceae
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Canada
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Chromista
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Cymbellaceae
Cymbellales
Encyonema
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Encyonema hebridicum
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Encyonema minutum
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Gomphonema
Gomphonema parvulum
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Gomphonema subclavatum
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Gomphonemataceae
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North America
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Ochrophyta
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Rocky Mountains
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biogeography
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diatoms
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ecology
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floristics
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taiga
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tundra
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